Side by side
Lum-Tec B68 Day DatevsSpinnaker Dumas GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
B68 Day Date44mm
Dumas GMT44mm
Power Reserve
B68 Day Date40h
Dumas GMT40h
Water Resistance
B68 Day Date200m
Dumas GMT300m
MSRP
B68 Day Date$595
Dumas GMT$399
Full specifications
Case
5 specsCategory
Sport
GMT
Thickness
—
15mm
Lug-to-Lug
51.5mm
48mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel
Water Resistance
200m
300m
Crystal & Dial
2 specsCrystal
Domed Sapphire
Sapphire
Dial Color
B68 Day Date
Blue
Movement
2 specsCaliber
Ronda 515
Seiko NH34A
Type
Quartz
Automatic
Pricing
1 specsMSRP
$595
$399
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